Area Code Lookup
What Area Code Is Macomb?
Area code 309 · Illinois
Macomb uses area code 309. It is located in Illinois.
Area Code Serving Macomb
Frequently Asked Questions
What area code is Macomb?
Macomb uses area code 309. It is located in Illinois.
How do I call Macomb from outside the US?
To call Macomb from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-309-XXX-XXXX). The +1 is the country code for all NANPA countries.